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Describe why heritablility only applies to population (not individuals or species), and how heritability can change without any genetic change occurring.
You are asked to determine the number of viable organisms per ml in a sample. The sample is thought to contain between 6.4*10^6 - 8.4*10^6 organisms per ml.
For a specific type of cell after 3 hours, the concentration of cells per ml of solution is about 400/mL. After 10 hours the concentration has gone up to 2000/mL.
Hershey and Chase experimented with radioactively labeled phosphorus and sulfur to determine that DNA and not protein is the genetic material.
The phosphorylation of ADP to form ATP stores approximately 7.3 kcal per mole o ATP. What is the approximate efficiency of cellular respiration for a "mutant" organism that produces only 29 mole of ATP for every mole of glucose oxidized, rather than ..
Give 2 distinguishing characteristics of a tRNA molecule. In translation what does the ribosome do? With reference to translation, what does translocation refer to?
A marine biologist has dredged up an unknown animal from the seafloor. Describe some of the characteristics she must look at to determine the phylum to which the animal have to be assigned.
The drug methotrexate has been reported to cause fetal death and/or congenital anomalies, therefore, it is not recommended for women of childbearing potential.
Describe how the clonal expansion theory explains the more rapid production of antigen specific antibodies, Helper T-cells and Cytotoxic T-cells, during a secondary infection.
Aspirin has a pH of three. Some people who take large amounts of aspirin (for example, for arthritis) take a pill that combines aspirin with Maalox. What is the reason for this combination.
The number of bacteria in saliva samples was determined by collecting the saliva, making serial dilutions, and inoculating nutrient agar through pour plate method. The plates were incubated aerobically for 48 hours at 37C.
The msh6 protein is involved in mismatch repair. How does mismatch repair differ from proofreading.
Explain the subdivisions and the sub-subdivisions of the ventral cavity and name an organ found in each.
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